Nationwide research is firming up the case for “intelligent” compaction (IC), a construction method three decades in the making that could save billions of dollars a year in potholed roads, cracked bridges, broken dams and blown-out tires. But as it represents a huge cultural shift in project delivery, the industry is struggling to find a standard way to roll it out. Slide Show Photo: Iowa State University Researchers test a ‘smart roller.’ With today’s busted public budgets, IC is a promising tool with global implications. “I’ve studied where we spend money in the U.S. to fix our infrastructure, and a
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.